Summary: Join us at Lattice and help shape the future of climbing training. As our new Senior UX/UI Designer, you’ll have the creative freedom to push boundaries, experiment with bold ideas, and build a truly futuristic experience for climbers worldwide. This is a rare chance to join a 10 year company at the start of a defining new chapter and play a major role in the direction of an industry leading sport app. You will be working alongside a passionate team of A-players committed to making Lattice the best training platform in any sport. If you want to create, innovate, and leave a lasting mark on the world of performance training, this is your moment.

Job Title: Senior UX/UI Designer

Start Date: January 2026 (some flexibility due to notice periods)

Location: Sheffield, UK (hybrid working) 

Salary: £35-45k (depending on experience)

Hours: 30-37.5 per week (negotiable) 

• Flexible working hours
• Hybrid working model
• 36 days holiday (incl. 4 fixed bank holidays) (pro rata) 
• Free training plan support
• Regular team socials
• Equipment discounts

What We’re Looking For: 

• Minimum 3 years of professional UX/UI design experience in a fast paced environment 
• Fluency and strong expertise in Figma and modern app design principles
• A strong portfolio showcasing UX/UI design work and problem solving skills
• Strong communication and collaboration skills
• Comfortable working both independently and as part of a team
• A genuine interest in sport, training, or ideally climbing
• Must be able to regularly travel to the Sheffield area for in-person working sessions (hybrid role)

What you’ll be working on:

Lattice has spent the last four years providing climbers around the globe with coach-led training plans through our mobile app. This December, we’re launching a new public membership model, marking the start of our next chapter. Our ambition: to become the world’s most trusted and widely used climbing training platform. 

What You’ll Be Doing:

• Take ownership of the end-to-end design process, and shape an exceptional user experience in the Lattice app as a key member of the development team.
• Collaborate closely with the CEO, helping define design direction that impacts the entire company.
• Engage directly with climbers and customers to gather insights and turn real feedback into meaningful product improvements.
• Create user flows, wireframes, prototypes, and polished UI designs that balance usability with visual excellence.
• Stay up to date with the latest UX/UI trends, interaction patterns, and platform guidelines (iOS & Android).
• Contribute to web-to-app projects  ensuring a consistent, polished aesthetic across all Lattice platforms.
• Provide design mentorship to other team members, helping them grow in their roles.

Who are we?

At our core, we’re a data-driven climbing company dedicated to unlocking every climber’s potential. We achieve this through expert coaching via our app, innovative tools, and educational resources. If you’re driven by a love for climbing, committed to excellence, and ready to make a significant impact, we’d love to hear from you.

Why Work With Us?

• Passion for Performance: Join a team that lives and breathes climbing, sports, and outdoor pursuits.
• Innovative & Data-Driven: Help shape the future of climbing performance.
• Flexible & Remote-Friendly: Work from our headquarters in Sheffield or while on your most recent climbing trip with a supportive and connected team.
• Growth & Learning: Join a collaborative environment where everyone has the freedom to shape their career, share ideas, and lead meaningful projects.
• People First: We are committed to a culture of respect, diversity, and inclusion. We believe different perspectives make us stronger and encourage applications from all backgrounds.

To Apply:

Email your CV and a cover letter detailing your interest, relevant experience, and any additional skills to [email protected] by: December 27th, 2025. Please note: We may start interviews before this date, and if a suitable candidate is found we may close the role early, so please send us your application asap if you are interested! 

We will not be able to obtain a sponsorship licence for this role, and as such the successful applicant will need to demonstrate that they have the right to work in the UK.